{"instruction": "You are an expert in event extraction. Please extract events from the input that conform to the schema definition. Return an empty list for events that do not exist, and return NAN for arguments that do not exist. If an argument has multiple values, please return a list. Respond in the format of a JSON string.", "schema": [{"event_type": "discover vulnerability", "trigger": true, "arguments": ["capabilities", "vulnerability", "vulnerable system", "discoverer", "time", "vulnerable system version", "supported platform"]}, {"event_type": "ransom", "trigger": true, "arguments": ["victim", "attack pattern", "payment method", "attacker", "damage amount", "price", "place"]}, {"event_type": "patch vulnerability", "trigger": true, "arguments": ["vulnerability", "patch", "time", "supported platform", "vulnerable system", "patch number", "common vulnerabilities and exposures"]}, {"event_type": "phishing", "trigger": true, "arguments": ["time", "attacker", "place", "damage amount", "trusted entity", "attack pattern", "victim", "tool", "purpose"]}], "input": "The ransomware attack , which Mayor Keisha Lance Bottoms characterized as \" a hostage situation , \" forced the city to shut down municipal courts and even prevented residents from paying bills online ."}
{"discover vulnerability": [], "ransom": [{"trigger": "The ransomware attack", "arguments": {}}], "patch vulnerability": [], "phishing": []}